/* =========================================
   VARIABLES DE COLOR
   ========================================= */
:root {
    --color-cyan: #00a2e8;      
    --color-indigo: #483d8b;    
    --color-dark-nav: #0a0e1c;  
    --color-dark: #1a1a1a;      
    --color-light: #f4f7f6;      
    --color-white: #ffffff;
    --font-main: 'Montserrat', sans-serif;
}

/* =========================================
   RESET Y ESTILOS BASE
   ========================================= */
* { margin: 0; padding: 0; box-sizing: border-box; scroll-behavior: smooth; }
body { font-family: var(--font-main); color: var(--color-dark); line-height: 1.6; background-color: var(--color-white); overflow-x: hidden; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
h1, h2, h3 { margin-bottom: 20px; }
h2 { font-size: 2.5rem; text-align: center; color: var(--color-indigo); }

/* =========================================
   ANIMACIÓN (Scroll Reveal)
   ========================================= */
.scroll-reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease, transform 0.8s ease; visibility: hidden; }
.scroll-reveal.reveal-active { opacity: 1; transform: translateY(0); visibility: visible; }

/* =========================================
   NAVEGACIÓN OSCURA
   ========================================= */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(10, 14, 28, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 15px 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    transition: all 0.4s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar.scrolled {
    padding: 8px 50px;
    background-color: rgba(10, 14, 28, 0.4);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.logo-link { display: flex; align-items: center; }

.logo-img {
    height: 75px;
    width: auto;
    object-fit: contain;
    transition: all 0.4s ease;
    background-color: transparent;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
    /* FILTRO ACTUALIZADO PARA COLOR AZUL CORPORATIVO */
    filter: invert(33%) sepia(85%) saturate(2254%) hue-rotate(193deg) brightness(91%) contrast(101%);
}

.navbar.scrolled .logo-img {
    height: 55px;
}

.nav-links { list-style: none; display: flex; gap: 30px; align-items: center; }
.nav-links a:not(.nav-btn) {
    text-decoration: none;
    color: var(--color-white);
    font-weight: 600;
    font-size: 0.95rem;
    position: relative;
    padding-bottom: 5px;
    transition: color 0.3s ease;
}

.nav-links a:not(.nav-btn)::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--color-cyan);
    transition: width 0.3s ease;
}

.nav-links a:not(.nav-btn):hover { color: var(--color-cyan); }
.nav-links a:not(.nav-btn):hover::after { width: 100%; }

.nav-btn {
    background-color: var(--color-white);
    color: var(--color-dark-nav) !important;
    padding: 10px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.nav-btn:hover {
    background-color: var(--color-cyan);
    color: var(--color-white) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 162, 232, 0.4);
}

/* =========================================
   HERO
   ========================================= */
.hero { position: relative; height: 100vh; min-height: 750px; display: flex; align-items: center; justify-content: center; text-align: center; padding: 0 20px; overflow: hidden; color: var(--color-white); background-color: #050505; }
.hero-video { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; opacity: 0.8; }
.hero-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(135deg, rgba(20, 20, 20, 0.7) 0%, rgba(10, 10, 10, 0.8) 60%, rgba(72, 61, 139, 0.3) 100%); z-index: 1; }
.hero-content { position: relative; z-index: 2; display: flex; flex-direction: column; align-items: center; width: 100%; }
.hero-content h1 { font-size: 3.5rem; font-weight: 700; margin-bottom: 20px; max-width: 900px; text-shadow: 0 2px 15px rgba(0,0,0,0.5); }
.hero-content p { font-size: 1.2rem; margin-bottom: 35px; max-width: 600px; text-shadow: 0 1px 5px rgba(0,0,0,0.5); }
.btn-primary { display: inline-block; padding: 15px 35px; background-color: var(--color-white); color: var(--color-indigo); text-decoration: none; font-weight: 700; border-radius: 5px; transition: all 0.3s ease; border: none; cursor: pointer; font-size: 1rem; box-shadow: 0 4px 15px rgba(0,0,0,0.2); }
.btn-primary:hover { background-color: var(--color-dark); color: var(--color-white); box-shadow: 0 8px 25px rgba(0,0,0,0.3); transform: translateY(-2px); }

.social-proof { margin-top: 60px; padding-top: 30px; border-top: 1px solid rgba(255, 255, 255, 0.15); width: 100%; max-width: 800px; }
.social-proof p { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 2px; color: rgba(255, 255, 255, 0.7); margin-bottom: 25px; font-weight: 600; }
.social-logos { display: flex; justify-content: center; gap: 60px; flex-wrap: wrap; }
.social-item { display: flex; flex-direction: column; align-items: center; gap: 12px; color: rgba(255, 255, 255, 0.6); transition: all 0.3s ease; cursor: default; }
.social-item:hover { color: var(--color-white); transform: translateY(-3px); }
.social-item svg { width: 36px; height: 36px; opacity: 0.8; }
.social-item span { font-size: 0.85rem; font-weight: 600; }

/* =========================================
   ABOUT
   ========================================= */
.about { padding: 100px 0; background-color: #001f3d; }
.about h2 { color: var(--color-white); }
.about-subtitle { text-align: center; color: var(--color-white); font-size: 1.2rem; font-weight: 600; margin-bottom: 50px; }
.about-text-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; text-align: left; }
.about-text-column p { margin-bottom: 20px; color: var(--color-white); line-height: 1.8; font-size: 1.05rem; }
.about-list { list-style: none; margin-bottom: 25px; }
.about-list li { position: relative; padding-left: 30px; margin-bottom: 15px; color: var(--color-white); line-height: 1.6; }
.about-list li::before { content: '✓'; position: absolute; left: 0; color: var(--color-cyan); font-weight: bold; font-size: 1.2rem; }
.about-highlight { font-weight: 600; color: var(--color-white) !important; border-left: 4px solid var(--color-cyan); padding-left: 20px; margin-top: 35px; font-style: italic; }

.stats-container { display: flex; justify-content: space-around; flex-wrap: wrap; gap: 30px; margin-top: 70px; padding-top: 50px; border-top: 1px solid #eaeaea; }
.stat-item { text-align: center; flex: 1; min-width: 150px; }
.stat-number { font-size: 3.5rem; font-weight: 700; color: var(--color-cyan); line-height: 1; }
.stat-plus { font-size: 2.5rem; font-weight: 700; color: var(--color-indigo); line-height: 1; vertical-align: super; }
.stat-label { font-size: 0.9rem; color: #666; font-weight: 600; margin-top: 10px; text-transform: uppercase; letter-spacing: 1px; }

/* =========================================
   SERVICES
   ========================================= */
.services { 
    padding: 80px 0; 
    background-image: url('../static/seccion.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.45);
    z-index: 1;
}

.services .container {
    position: relative;
    z-index: 2;
}

.services h2 {
    color: var(--color-indigo);
}

.services-subtitle { text-align: center; color: #666; font-size: 1.1rem; margin-bottom: 50px; }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 40px; margin-top: 40px; }
.flip-card { background-color: transparent; height: 380px; perspective: 1000px; cursor: pointer; }
.flip-card-inner { position: relative; width: 100%; height: 100%; text-align: center; transition: transform 0.8s cubic-bezier(0.4, 0.2, 0.2, 1); transform-style: preserve-3d; box-shadow: 0 10px 30px rgba(0,0,0,0.08); border-radius: 10px; }
.flip-card:hover .flip-card-inner { transform: rotateY(180deg); }
.flip-card.active .flip-card-inner { transform: rotateY(180deg); }
.flip-card-front, .flip-card-back { position: absolute; width: 100%; height: 100%; backface-visibility: hidden; border-radius: 10px; padding: 40px 30px; display: flex; flex-direction: column; justify-content: center; align-items: center; }
.flip-card-front { background-color: var(--color-white); color: var(--color-dark); border-top: 5px solid var(--color-cyan); }
.card-icon { margin-bottom: 25px; color: var(--color-indigo); }
.card-icon svg { width: 60px; height: 60px; }
.flip-card-front h3 { color: var(--color-indigo); font-size: 1.5rem; margin-bottom: 15px; }
.front-desc { color: #555; margin-bottom: 20px; }
.flip-hint { font-size: 0.85rem; color: var(--color-cyan); font-weight: 600; text-transform: uppercase; letter-spacing: 1px; margin-top: auto; }
.flip-card-back { background: linear-gradient(135deg, rgba(72, 61, 139, 0.95) 0%, rgba(20, 20, 30, 0.98) 100%); color: var(--color-white); transform: rotateY(180deg); text-align: left; align-items: flex-start; }
.flip-card-back h3 { color: var(--color-cyan); font-size: 1.3rem; margin-bottom: 20px; }
.back-list { list-style: none; margin-bottom: 25px; }
.back-list li { position: relative; padding-left: 20px; margin-bottom: 12px; font-size: 0.95rem; color: #ddd; line-height: 1.4; }
.back-list li::before { content: '•'; position: absolute; left: 0; color: var(--color-cyan); font-size: 1.2rem; }
.btn-card { display: inline-block; padding: 10px 20px; border: 1px solid var(--color-cyan); color: var(--color-white); text-decoration: none; border-radius: 4px; font-size: 0.9rem; transition: all 0.3s ease; align-self: center; margin-top: auto; }
.btn-card:hover { background-color: var(--color-cyan); color: var(--color-dark); font-weight: 600; }

/* =========================================
   CONTACT
   ========================================= */
.contact { 
    padding: 100px 0; 
    background-color: #001f3d;
    text-align: center; 
}

.contact h2 {
    color: var(--color-white);
    margin-bottom: 15px;
    font-size: 2.8rem;
}

.contact-subtitle { 
    font-size: 1.15rem; 
    color: var(--color-white); 
    margin-bottom: 60px; 
    max-width: 700px; 
    margin-left: auto; 
    margin-right: auto;
    line-height: 1.7;
}

.contact-options { 
    display: flex; 
    justify-content: center; 
    gap: 30px; 
    flex-wrap: wrap; 
    max-width: 1000px; 
    margin: 0 auto; 
}

.contact-btn { 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    justify-content: center; 
    padding: 40px 35px; 
    background-color: var(--color-white); 
    border: 2px solid #e0e0e0;
    border-radius: 12px; 
    text-decoration: none; 
    color: var(--color-indigo); 
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 280px; 
    flex: 1;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    position: relative;
    overflow: hidden;
}

.contact-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--color-cyan);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.contact-btn:hover {
    border-color: var(--color-cyan);
    background-color: rgba(0, 162, 232, 0.05);
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0, 162, 232, 0.15);
}

.contact-btn:hover::before {
    transform: scaleX(1);
}

.contact-btn .btn-title { 
    font-size: 1.3rem; 
    font-weight: 700; 
    margin-bottom: 10px;
    color: var(--color-indigo);
}

.contact-btn .btn-detail { 
    color: #666; 
    font-size: 1.05rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.contact-btn:hover .btn-detail { 
    color: var(--color-cyan);
}

.whatsapp-btn {
    border-color: #e0e0e0;
}

.whatsapp-btn:hover {
    border-color: #25D366;
    background-color: rgba(37, 211, 102, 0.05);
    box-shadow: 0 12px 30px rgba(37, 211, 102, 0.15);
}

.whatsapp-btn::before {
    background-color: #25D366;
}

footer { background-color: var(--color-indigo); color: var(--color-white); text-align: center; padding: 20px 0; }

/* =========================================
   HAMBURGER MENU
   ========================================= */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 6px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--color-white);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(10px, 10px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* =========================================
   MEDIA QUERIES
   ========================================= */
@media (max-width: 1024px) {
    .container { padding: 0 22px; }
    
    .navbar { padding: 13px 28px; }
    .navbar.scrolled { padding: 10px 28px; }
    
    .logo-img { height: 65px; }
    .navbar.scrolled .logo-img { height: 56px; }
    
    .nav-links { gap: 20px; }
    
    h2 { font-size: 2.2rem; margin-bottom: 12px; }
    
    .hero {
        padding-top: 75px;
        min-height: calc(100vh + 75px);
    }
    
    .hero-content h1 { 
        font-size: 2.8rem; 
        margin-bottom: 18px;
    }
    
    .hero-content p { 
        font-size: 1rem;
        margin-bottom: 30px;
    }
    
    .btn-primary {
        padding: 13px 32px;
        font-size: 0.95rem;
    }
    
    .social-proof { margin-top: 50px; }
    .social-logos { gap: 50px; }
    .social-item svg { width: 32px; height: 32px; }
    .social-item span { font-size: 0.82rem; }
    
    .about { 
        padding: 70px 0;
    }
    
    .about-subtitle {
        font-size: 1.15rem;
        margin-bottom: 40px;
    }
    
    .about-text-grid { gap: 35px; }
    
    .about-text-column p { 
        font-size: 1rem;
        margin-bottom: 18px;
    }
    
    .about-list li { 
        font-size: 0.95rem;
        margin-bottom: 13px;
        padding-left: 28px;
    }
    
    .about-highlight {
        font-size: 0.95rem;
        margin-top: 28px;
        padding-left: 22px;
    }
    
    .stats-container { 
        gap: 30px;
        margin-top: 60px;
        padding-top: 40px;
    }
    
    .stat-item { min-width: 22%; }
    .stat-number { font-size: 2.8rem; }
    .stat-plus { font-size: 2rem; }
    .stat-label { font-size: 0.8rem; }
    
    .services { padding: 70px 0; }
    
    .services-subtitle { 
        font-size: 1.05rem;
        margin-bottom: 40px;
    }
    
    .services-grid { gap: 32px; }
    .flip-card { height: 360px; }
    
    .flip-card-front h3 { font-size: 1.3rem; }
    .front-desc { font-size: 0.92rem; }
    
    .flip-card-back h3 { font-size: 1.2rem; }
    .back-list li { font-size: 0.92rem; }
    
    .contact { 
        padding: 70px 0;
    }
    
    .contact h2 {
        font-size: 2.2rem;
        margin-bottom: 12px;
    }
    
    .contact-subtitle { 
        font-size: 1.08rem;
        margin-bottom: 50px;
    }
    
    .contact-btn {
        min-width: 280px;
        padding: 35px 30px;
    }
    
    .contact-btn .btn-title { font-size: 1.2rem; }
    .contact-btn .btn-detail { font-size: 1rem; }
    
    footer { padding: 18px 0; }
}

@media (max-width: 768px) {
    * { margin: 0; padding: 0; }
    
    .navbar { padding: 12px 15px; }
    .navbar.scrolled { padding: 8px 15px; }
    .logo-img { height: 50px; }
    .navbar.scrolled .logo-img { height: 45px; }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger span {
        width: 22px;
        height: 2.5px;
    }
    
    h1, h2, h3 { margin-bottom: 15px; }
    h2 { font-size: 1.8rem; }
    
    .container { padding: 0 15px; }
    
    .hero {
        padding-top: 70px;
        min-height: calc(100vh - 70px);
        height: auto;
        padding-bottom: 50px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .hero-content h1 { 
        font-size: 1.8rem; 
        margin-bottom: 15px;
        max-width: 100%;
        line-height: 1.3;
        letter-spacing: -0.5px;
    }
    
    .hero-content p { 
        font-size: 0.95rem; 
        margin-bottom: 30px;
        max-width: 100%;
        line-height: 1.5;
    }
    
    .btn-primary {
        padding: 12px 28px;
        font-size: 0.9rem;
    }
    
    .social-proof { 
        margin-top: 40px; 
        padding-top: 25px;
        border-top: 1px solid rgba(255, 255, 255, 0.15);
        width: 95%;
    }
    
    .social-proof p { 
        font-size: 0.7rem;
        margin-bottom: 20px;
        letter-spacing: 1px;
        text-transform: uppercase;
    }
    
    .social-logos { 
        gap: 25px;
        justify-content: center;
    }
    
    .social-item {
        min-width: 80px;
    }
    
    .social-item svg { 
        width: 28px; 
        height: 28px; 
    }
    
    .social-item span { 
        font-size: 0.7rem;
        display: block;
        max-width: 70px;
        word-wrap: break-word;
    }
    
    .about { 
        padding: 60px 0;
        background-color: #001f3d;
    }
    
    .about h2 { 
        color: var(--color-white);
        margin-bottom: 10px;
    }
    
    .about-subtitle {
        font-size: 1.1rem;
        margin-bottom: 30px;
    }
    
    .about-text-grid { 
        grid-template-columns: 1fr; 
        gap: 30px;
    }
    
    .about-text-column p { 
        font-size: 0.95rem;
        margin-bottom: 18px;
        line-height: 1.7;
    }
    
    .about-list li { 
        font-size: 0.9rem;
        margin-bottom: 13px;
        padding-left: 28px;
        line-height: 1.5;
    }
    
    .about-highlight { 
        font-size: 0.9rem;
        margin-top: 25px;
        padding: 15px 0 15px 18px;
        border-left: 3px solid var(--color-cyan);
    }
    
    .stats-container { 
        gap: 25px;
        margin-top: 50px;
        padding-top: 40px;
        flex-wrap: wrap;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .stat-item { 
        min-width: 48%;
        flex: 0 1 48%;
    }
    
    .stat-number { 
        font-size: 2.2rem;
        display: block;
    }
    
    .stat-plus { 
        font-size: 1.6rem;
        vertical-align: super;
    }
    
    .stat-label { 
        font-size: 0.75rem;
        margin-top: 10px;
        letter-spacing: 0.5px;
    }
    
    .services { 
        padding: 60px 0;
        background-attachment: scroll;
    }
    
    .services h2 {
        margin-bottom: 10px;
    }
    
    .services-subtitle { 
        font-size: 0.95rem;
        margin-bottom: 40px;
        color: #555;
    }
    
    .services-grid { 
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .flip-card { 
        height: 340px;
    }
    
    .flip-card-front, .flip-card-back { 
        padding: 28px 22px;
    }
    
    .card-icon svg { 
        width: 54px;
        height: 54px;
    }
    
    .flip-card-front h3 { 
        font-size: 1.25rem;
        margin-bottom: 12px;
        font-weight: 700;
    }
    
    .front-desc { 
        font-size: 0.87rem;
        margin-bottom: 18px;
        line-height: 1.4;
    }
    
    .flip-hint { 
        font-size: 0.75rem;
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }
    
    .flip-card-back h3 { 
        font-size: 1.15rem;
        margin-bottom: 18px;
        font-weight: 700;
    }
    
    .back-list li { 
        font-size: 0.87rem;
        margin-bottom: 12px;
        line-height: 1.5;
    }
    
    .btn-card { 
        padding: 10px 18px;
        font-size: 0.82rem;
        margin-top: 15px;
    }
    
    .contact { 
        padding: 60px 0;
    }
    
    .contact h2 {
        font-size: 1.9rem;
        margin-bottom: 12px;
        font-weight: 700;
    }
    
    .contact-subtitle { 
        font-size: 0.96rem; 
        margin-bottom: 45px;
        line-height: 1.7;
        color: rgba(255, 255, 255, 0.9);
    }
    
    .contact-options {
        flex-direction: column;
        gap: 18px;
        max-width: 100%;
    }
    
    .contact-btn {
        width: 100%;
        min-width: unset;
        padding: 28px 22px;
        border-radius: 10px;
    }
    
    .contact-btn .btn-title { 
        font-size: 1.15rem;
        margin-bottom: 12px;
    }
    
    .contact-btn .btn-detail { 
        font-size: 0.92rem;
        font-weight: 400;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background-color: rgba(10, 14, 28, 0.98);
        width: 100%;
        text-align: center;
        transition: left 0.3s ease;
        padding: 15px 0;
        gap: 0;
        backdrop-filter: blur(10px);
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .nav-links li {
        padding: 12px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav-links a:not(.nav-btn) {
        font-size: 0.95rem;
    }
    
    .nav-btn {
        margin: 12px 0;
        display: inline-block;
        padding: 8px 20px;
        font-size: 0.9rem;
    }
    
    footer { padding: 15px 0; }
}

@media (max-width: 480px) {
    .container { padding: 0 12px; }
    
    h2 { font-size: 1.5rem; margin-bottom: 10px; }
    h3 { font-size: 1.1rem; }
    
    .navbar { 
        padding: 10px 12px; 
        gap: 12px;
    }
    
    .navbar.scrolled { padding: 8px 12px; }
    
    .logo-img { height: 42px; }
    .navbar.scrolled .logo-img { height: 38px; }
    
    .hero {
        padding-top: 65px;
        padding-bottom: 40px;
        min-height: calc(100vh - 65px);
    }
    
    .hero-content h1 { 
        font-size: 1.35rem;
        margin-bottom: 12px;
        line-height: 1.25;
        letter-spacing: -0.5px;
    }
    
    .hero-content p { 
        font-size: 0.82rem;
        margin-bottom: 25px;
        line-height: 1.5;
    }
    
    .btn-primary {
        padding: 10px 18px;
        font-size: 0.8rem;
    }
    
    .social-proof { 
        margin-top: 32px; 
        padding-top: 20px;
    }
    
    .social-proof p { 
        font-size: 0.65rem;
        margin-bottom: 18px;
    }
    
    .social-logos { 
        gap: 18px;
        flex-direction: column;
        align-items: center;
    }
    
    .social-item { 
        min-width: auto;
    }
    
    .social-item svg { 
        width: 22px; 
        height: 22px; 
    }
    
    .social-item span { 
        font-size: 0.65rem;
        max-width: 60px;
    }
    
    .about { 
        padding: 50px 0;
    }
    
    .about h2 { margin-bottom: 8px; }
    
    .about-subtitle {
        font-size: 0.95rem;
        margin-bottom: 25px;
    }
    
    .about-text-grid { 
        gap: 22px;
    }
    
    .about-text-column p { 
        font-size: 0.88rem;
        margin-bottom: 14px;
        line-height: 1.6;
    }
    
    .about-list li { 
        font-size: 0.82rem;
        margin-bottom: 10px;
        padding-left: 24px;
        line-height: 1.4;
    }
    
    .about-list li::before {
        font-size: 1rem;
    }
    
    .about-highlight { 
        font-size: 0.82rem;
        margin-top: 18px;
        padding: 12px 0 12px 14px;
        border-left: 2px solid var(--color-cyan);
    }
    
    .stats-container { 
        gap: 20px;
        margin-top: 40px;
        padding-top: 30px;
    }
    
    .stat-item { 
        min-width: 45%;
        flex: 0 1 45%;
    }
    
    .stat-number { 
        font-size: 1.8rem;
    }
    
    .stat-plus { 
        font-size: 1.3rem;
    }
    
    .stat-label { 
        font-size: 0.65rem;
        margin-top: 8px;
        letter-spacing: 0.3px;
    }
    
    .services {
        padding: 50px 0;
    }
    
    .services h2 {
        font-size: 1.5rem;
        margin-bottom: 8px;
    }
    
    .services-subtitle { 
        font-size: 0.85rem;
        margin-bottom: 32px;
    }
    
    .services-grid { gap: 22px; }
    
    .flip-card { 
        height: 310px;
    }
    
    .flip-card-front, .flip-card-back { 
        padding: 22px 18px;
    }
    
    .card-icon svg { 
        width: 48px;
        height: 48px;
    }
    
    .flip-card-front h3 { 
        font-size: 1.15rem;
        margin-bottom: 10px;
    }
    
    .front-desc { 
        font-size: 0.8rem;
        margin-bottom: 14px;
    }
    
    .flip-hint { font-size: 0.7rem; }
    
    .flip-card-back h3 { 
        font-size: 1.05rem;
        margin-bottom: 14px;
    }
    
    .back-list li { 
        font-size: 0.8rem;
        margin-bottom: 9px;
        line-height: 1.4;
    }
    
    .btn-card { 
        padding: 8px 14px;
        font-size: 0.75rem;
        margin-top: 12px;
    }
    
    .contact { 
        padding: 50px 0;
    }
    
    .contact h2 { 
        font-size: 1.5rem;
        margin-bottom: 10px;
    }
    
    .contact-subtitle { 
        font-size: 0.88rem;
        margin-bottom: 35px;
        line-height: 1.6;
    }
    
    .contact-options { gap: 15px; }
    
    .contact-btn {
        padding: 22px 18px;
        border-radius: 8px;
    }
    
    .contact-btn .btn-title { 
        font-size: 1.05rem;
        margin-bottom: 10px;
    }
    
    .contact-btn .btn-detail { 
        font-size: 0.85rem;
    }
    
    .nav-links {
        top: 65px;
    }
    
    .nav-links li { padding: 10px 0; }
    .nav-links a:not(.nav-btn) { font-size: 0.9rem; }
    .nav-btn { padding: 6px 16px; font-size: 0.8rem; }
    
    footer { padding: 12px 0; font-size: 0.85rem; }
}